Auxiliary clamp for ship part welding

Abstract

The auxiliary clamp comprises a supporting vehicle, two supporting rods are fixedly connected to the upper end of the supporting vehicle, air cylinders are rotationally connected to the outer surfaces of the supporting rods, the upper ends of the supporting rods and the upper ends of the air cylinders are jointly and fixedly connected with a containing plate, and a containing groove is formed in the middle of the upper end of the containing plate. The front end of the placing plate is fixedly connected with a motor, the output end of the motor movably penetrates into the containing groove and is fixedly connected with a double-thread screw, the multiple extrusion strips capable of independently moving are arranged, the special-shaped plate can be clamped in a self-adaptive mode, when the extrusion strips make contact with the plate, the multiple extrusion balls can be pushed to move in the containing strips, and therefore the plate can be clamped in a self-adaptive mode. And therefore, the multiple extrusion strips are in an uneven state, the contact area of the surfaces of the special-shaped plates is increased, the clamping stability of the special-shaped plates is improved, the special-shaped plates are not prone to shaking during welding, and then the welding alignment accuracy of the special-shaped plates is effectively improved.

Description

Technical Field

[0001] This utility model relates to an auxiliary clamp, and more particularly to an auxiliary clamp for welding ship parts in the field of shipbuilding. Background Technology

[0002] Ships are vehicles that can navigate or anchor in waterways for transportation or operations. They have different technical performance, equipment, and structural types depending on their usage requirements. In the shipbuilding process, welding is the main process for connecting metal parts, involving many key components and structures, such as welding between different structures like plates and pipes.

[0003] The specification of Chinese Patent Publication No. CN218891374U discloses a metal sheet welding fixture. This utility model can facilitate users to splice and fix sheets of different widths, and the rolling ball can also make it easier for users to place the sheet on the surface of the "L" shaped block, thereby reducing frictional resistance during placement and bringing certain convenience to the user.

[0004] However, the above-mentioned patents may encounter the following problems in practical applications: When clamping sheet metal parts, since some parts are irregularly shaped, only a portion of the sheet metal may be clamped when clamping and fixing them, resulting in unstable clamping. During welding, the sheet metal is prone to shaking, which affects the accuracy of welding alignment. Utility Model Content

[0005] The technical problem that this utility model aims to solve in view of the above-mentioned prior art is that some sheet metal parts have irregular shapes. When existing clamps are used to clamp and fix them, they can only clamp some positions, and some areas cannot contact the clamps, resulting in unstable clamping. During welding, the sheet metal is prone to shaking, which affects the welding process.

[0006] To address the aforementioned problems, this utility model provides an auxiliary fixture for welding ship components, comprising a support carriage. Two support rods are fixedly connected to the upper end of the support carriage. A cylinder is rotatably connected to the outer surface of each support rod. A placement plate is fixedly connected to the upper ends of both the support rods and the cylinders. A receiving groove is chiseled in the middle of the upper end of the placement plate. A motor is fixedly connected to the front end of the placement plate. The output end of the motor movably extends into the receiving groove and is fixedly connected to a double-ended screw. Two sliders are threaded onto the outer surface of the double-ended screw. A clamping assembly is fixedly connected to the upper end of each slider. The clamping assembly includes a support fixedly connected to the slider. The support bar has multiple adjustment grooves at its upper end. Springs are fixedly connected to the front and rear inner walls of the adjustment grooves. An adjustment block is fixedly connected between two springs. A sliding rod is fixedly connected between the front inner walls of the adjustment grooves. The rear end of the sliding rod movably passes through the two springs and the adjustment block respectively. A receiving bar is fixedly connected to the upper end of the support bar. Multiple sliding grooves corresponding to the multiple adjustment grooves are carved on the inner bottom wall of the receiving bar. The upper end of the adjustment block movably passes through the sliding groove and is fixedly connected to an extrusion bar. The space between the multiple extrusion bars and the longitudinal inner walls of the receiving bar is saturated with multiple extrusion balls whose front and rear ends have opposite thread directions.

[0007] In the aforementioned auxiliary fixture for welding ship components, multiple independently movable extrusion bars can adaptively clamp irregularly shaped plates. When the extrusion bars contact the plate, they can push multiple extrusion balls to move within the receiving bars, thereby creating an uneven surface on the multiple extrusion bars. This increases the contact area with the surface of the irregularly shaped plate, thereby improving the stability of clamping the plate and making it less prone to shaking during welding. This effectively improves the accuracy of the welding alignment of the irregularly shaped plate.

[0008] As a further improvement of this application, the two clamping components are mirror-distributed, and the threads at the front and rear ends of the double-ended screw have opposite directions.

[0009] As a further improvement of this application, the lower end of the support strip is attached to the upper end of the placement plate, and the corresponding ends of the two longitudinally opposite extrusion strips both movably penetrate the receiving strip.

[0010] As a further improvement of this application, the lower end of the support strip is attached to the upper end of the placement plate, and the corresponding ends of the two longitudinally opposite extrusion strips both movably pass through the receiving strip.

[0011] As another improvement of this application, the extrusion ball is made of a hard material, and the diameter of the extrusion ball is greater than the width of the groove.

[0012] As another improvement of this application, an L-shaped plate is fixedly connected to the upper end of the receiving strip, an adjusting screw is threaded through the upper end of the L-shaped plate, a pressure plate is fixedly connected to the lower end of the adjusting screw, and a rubber plate is fixedly connected to the lower end of the pressure plate.

[0013] In summary, in practical applications, the irregularly shaped sheet material is placed on the placement plate, and the motor is started to drive the double-headed screw to rotate, causing the two sliders to move towards each other, and the two support bars also move towards each other. When the extrusion bar contacts the protruding part of the sheet material, the contacting extrusion bar moves inward into the receiving bar due to the resistance of the sheet material. This causes the adjusting block to move inward into the receiving bar as well. The spring on one side of the adjusting block's movement direction is in a compressed state, while the spring on the other side is in a stretched state. At this time, the moving extrusion bar pushes the extrusion ball to redistribute its position, moving it towards the extrusion bar that is not in contact with the sheet material. This pushes the extrusion bar at that location outward from the receiving bar until it contacts the concave part of the sheet material. This creates an uneven surface from multiple extrusion bars, increasing the contact area on the surface of the irregularly shaped sheet material. This improves the stability of clamping the irregularly shaped sheet material, making it less prone to shaking during welding, and thus effectively improving the accuracy of the welding alignment of the irregularly shaped sheet material. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the first embodiment of this application;

[0015] Figure 2 This is a schematic diagram of the support rod structure according to the first embodiment of this application;

[0016] Figure 3 This is a schematic diagram of the placement plate structure according to the first embodiment of this application;

[0017] Figure 4 This is a schematic diagram of the slider structure according to the first embodiment of this application;

[0018] Figure 5 This is a schematic diagram of the clamping component structure according to the first embodiment of this application;

[0019] Figure 6 This is an exploded view of the clamping component structure according to the first embodiment of this application;

[0020] Figure 7 This is a schematic diagram of the movement of the extrusion bar according to the first embodiment of this application;

[0021] Figure 8 This is a bottom view of the support strip structure according to the first embodiment of this application;

[0022] Figure 9 This is a cross-sectional view of the placement plate structure according to the second embodiment of this application.

[0023] Explanation of the labels in the diagram:

[0024] 1. Support cart, 2. Support rod, 3. Cylinder, 4. Placement plate, 5. Motor, 6. Double-ended screw, 7. Slider, 8. Support bar, 9. Adjustment groove, 10. Spring, 11. Adjustment block, 12. Slide rod, 13. Containing bar, 14. Slide groove, 15. Extrusion bar, 16. Extrusion ball, 17. L-shaped plate, 18. Adjustment screw, 19. Pressure plate. Detailed Implementation

[0025] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0026] First implementation method:

[0027] Figure 1 , Figure 2 , Figure 3 and Figure 4 The illustration shows an auxiliary fixture for welding ship components, comprising a support carriage 1. Two support rods 2 are fixedly connected to the upper end of the support carriage 1. A cylinder 3 is rotatably connected to the outer surface of each support rod 2. Those skilled in the art can select a suitable model of cylinder 3 according to actual needs, such as SCD50x100-100-LB. A placement plate 4 is fixedly connected to the upper ends of both the support rods 2 and the cylinders 3. A receiving groove is carved in the middle of the upper end of the placement plate 4. A motor 5 is fixedly connected to the front end of the placement plate 4. Those skilled in the art can select a suitable model of motor 5 according to actual needs, such as Y2-63M1-2-0.18KW. The output end of the motor 5 extends into the receiving groove and is fixedly connected to a double-ended screw 6. The threads at the front and rear ends of the double-ended screw 6 turn in opposite directions. Two sliders 7 are threaded on the outer surface of the double-ended screw 6. A clamping assembly is fixedly connected to the upper end of the slider 7. The two clamping assemblies are distributed in a mirror image. When the motor 5 is started, the double-ended screw 6 is rotated, causing the two sliders 7 to move towards each other, and the two support bars 8 also move towards each other, thus facilitating the clamping of plates of different widths. If it is necessary to adjust the welding angle, the cylinder 3 can be activated to extend, causing the right end of the placement plate 4 to rotate, thereby causing the plate to rotate, which facilitates welding.

[0028] Figure 1 , Figure 5 , Figure 6 , Figure 7 and Figure 8The clamping assembly includes a support bar 8 fixedly connected to the slider 7. The lower end of the support bar 8 is in contact with the upper end of the placement plate 4. Multiple adjustment grooves 9 are carved into the upper end of the support bar 8. Springs 10 are fixedly connected to the front and rear inner walls of each adjustment groove 9. An adjustment block 11 is fixedly connected between two springs 10. The longitudinal section of the adjustment block 11 is U-shaped, and both ends of the adjustment block 11 are in contact with the inner walls of the adjustment grooves 9. A sliding rod 12 is fixedly connected between the front inner walls of the adjustment grooves 9. The rear end of the sliding rod 12 movably passes through the two springs 10 and the adjustment block 11. When the extrusion bar 15 moves, one spring 10 is in a compressed state, and the other spring 10 is in a stretched state. After welding, when the clamping assembly disengages from the plate, it can automatically reset the extrusion bar 15, facilitating subsequent clamping of other plates. Simultaneously, the adjustment block 11... The extrusion strip 15 is limited to effectively prevent it from coming out of the receiving strip 13. The upper end of the support strip 8 is fixedly connected to the receiving strip 13. The inner bottom wall of the receiving strip 13 is carved with multiple grooves 14 corresponding to multiple adjustment grooves 9. The upper end of the adjustment block 11 moves through the groove 14 and is fixedly connected to the extrusion strip 15. Two adjacent extrusion strips 15 fit together, so that multiple extrusion balls 16 always move within the receiving strip 13. The corresponding ends of two longitudinally opposite extrusion strips 15 move through the receiving strip 13. The space between the multiple extrusion strips 15 and the longitudinal inner wall of the receiving strip 13 is saturated with multiple extrusion balls 16. The extrusion balls 16 are made of hard material and the diameter of the extrusion balls 16 is larger than the width of the groove 14, making it difficult for the extrusion balls 16 to enter the groove 14, effectively preventing the extrusion balls 16 from obstructing the movement of the extrusion strips 15.

[0029] When clamping and fixing irregularly shaped sheets, the sheets can be placed on the placement plate 4. The motor 5 is started, driving the double-headed screw 6 to rotate, causing the two sliders 7 to move towards each other. The two support bars 8 also move towards each other. When the extrusion bar 15 contacts the protruding part of the sheet, the contact with the sheet causes the extrusion bar 15 to move inwards towards the receiving bar 13. This causes the adjusting block 11 to also move towards the receiving bar 13. The spring 10 on one side of the moving direction of the adjusting block 11 is in a compressed state, while the spring 10 on the other side is in a stretched state. The moving extrusion strip 15 pushes the extrusion ball 16 to redistribute its position, moving it toward the extrusion strip 15 that is not in contact with the plate. This pushes the extrusion strip 15 at that location toward the receiving strip 13 until it contacts the recessed part of the plate. This creates an uneven surface with multiple extrusion strips 15, increasing the contact area with the surface of the irregular plate and improving the stability of clamping the irregular plate. This makes the irregular plate less prone to shaking during welding, thus effectively improving the accuracy of the welding alignment of the irregular plate.

[0030] Second implementation method:

[0031] This embodiment adds an L-shaped plate 17, an adjusting screw 18, and a pressure plate 19 to the first embodiment, while the rest remains the same as the first embodiment.

[0032] Figure 9 As shown: An L-shaped plate 17 is fixedly connected to the upper end of the receiving strip 13. An adjusting screw 18 is threaded through the upper end of the L-shaped plate 17. A pressure plate 19 is fixedly connected to the lower end of the adjusting screw 18. A rubber plate is fixedly connected to the lower end of the pressure plate 19. The rubber plate is a flexible structure. When it comes into contact with the plate, it can effectively prevent the pressure plate 19 from making hard contact with the plate. It can not only effectively improve the friction between the pressure plate 19 and the plate, but also protect the upper end of the plate.

[0033] After the plate is fixed in place by the clamping assembly, the adjustable screw 18 can be rotated to move the pressure plate 19 downward until the lower end of the pressure plate 19 contacts the upper end of the plate, thereby fixing the upper end of the plate and effectively improving the stability of the plate during clamping.

[0034] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. An auxiliary fixture for welding ship components, comprising a support vehicle (1), characterized in that: The upper end of the support vehicle (1) is fixedly connected to two support rods (2). The outer surface of the support rods (2) is rotatably connected to a cylinder (3). The upper ends of the support rods (2) and the cylinder (3) are fixedly connected to a placement plate (4). A receiving groove is chiseled in the middle of the upper end of the placement plate (4). A motor (5) is fixedly connected to the front end of the placement plate (4). The output end of the motor (5) moves through the receiving groove and is fixedly connected to a double-headed screw (6). Two sliders (7) are threaded on the outer surface of the double-headed screw (6). A clamping assembly is fixedly connected to the upper end of the sliders (7). The clamping assembly includes a support bar (8) fixedly connected to the slider (7). The upper end of the support bar (8) is chiseled with multiple adjustment grooves (9). Springs (10) are fixedly connected to the front and rear inner walls of the adjustment grooves (9). An adjustment block (11) is fixedly connected between the two springs (10). A slide rod (12) is fixedly connected between the front inner walls of the adjustment grooves (9). The rear end of the slide rod (12) movably passes through the two springs (10) and the adjustment block (11). A receiving bar (13) is fixedly connected to the upper end of the support bar (8). Multiple slide grooves (14) corresponding to the multiple adjustment grooves (9) are chiseled on the inner bottom wall of the receiving bar (13). The upper end of the adjustment block (11) movably passes through the slide groove (14) and is fixedly connected with an extrusion bar (15). Multiple extrusion balls (16) are saturated in the space between the multiple extrusion bars (15) and the longitudinal inner walls of the receiving bar (13).

2. The auxiliary fixture for welding ship components according to claim 1, characterized in that: The two clamping assemblies are mirror-distributed, and the threads at the front and rear ends of the double-ended screw (6) are opposite.

3. The auxiliary fixture for welding ship components according to claim 1, characterized in that: The lower end of the support strip (8) is attached to the upper end of the placement plate (4), and the two longitudinally opposite extrusion strips (15) have their corresponding ends movably penetrating the receiving strip (13).

4. The auxiliary fixture for welding ship components according to claim 1, characterized in that: The two adjacent extrusion strips (15) are in contact with each other, the longitudinal section of the adjustment block (11) is T-shaped, and both the left and right ends of the adjustment block (11) are in contact with the inner wall of the adjustment groove (9).

5. An auxiliary fixture for welding ship components according to claim 1, characterized in that: The extrusion ball (16) is made of a hard material, and the diameter of the extrusion ball (16) is greater than the width of the groove (14).

6. The auxiliary fixture for welding ship components according to claim 1, characterized in that: An L-shaped plate (17) is fixedly connected to the upper end of the receiving strip (13). An adjusting screw (18) is threaded through the upper end of the L-shaped plate (17). A pressure plate (19) is fixedly connected to the lower end of the adjusting screw (18), and a rubber plate is fixedly connected to the lower end of the pressure plate (19).

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